Home / 66,886,613.10-100,329,919.65-21,453,000.30

Finding the Fourth Proportional to 66,886,613.10, 100,329,919.65 and 21,453,000.30

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Solution

The fourth proportional to 66,886,613.10, 100,329,919.65 and 21,453,000.30 is: 32,179,500.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,886,613.10 : 100,329,919.65 = 21,453,000.30 : x
  2. Step 2: Convert to fraction form
    66,886,613.10/100,329,919.65 = 21,453,000.30/x
  3. Step 3: Cross multiply
    66,886,613.10x = 100,329,919.65 × 21,453,000.30
  4. Step 4: Simplify right side
    66,886,613.10x = 2,152,377,796,350,426
  5. Step 5: Solve for x
    x = 2,152,377,796,350,426/66,886,613.10
  6. Step 6: Final answer
    x = 32,179,500.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.